75 lines
2.8 KiB
Python
75 lines
2.8 KiB
Python
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"""Tests for furtka.passwd — stdlib-only password hashing.
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The primary contract: hash/verify roundtrips cleanly, AND the verifier
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accepts the werkzeug hash format that 26.11 / 26.12 boxes wrote to
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``users.json``. Losing that backward compat would lock out existing
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admins after a 26.13+ upgrade.
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"""
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from __future__ import annotations
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from furtka import passwd
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def test_hash_roundtrip():
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h = passwd.hash_password("hunter2")
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assert passwd.verify_password("hunter2", h)
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assert not passwd.verify_password("wrong", h)
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def test_hash_is_salted():
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# Two separate hashes of the same password must diverge.
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a = passwd.hash_password("same-pw")
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b = passwd.hash_password("same-pw")
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assert a != b
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assert passwd.verify_password("same-pw", a)
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assert passwd.verify_password("same-pw", b)
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def test_generated_hash_format():
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# Shape is pbkdf2:<hash>:<iter>$<salt>$<hex>
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h = passwd.hash_password("x")
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parts = h.split("$", 2)
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assert len(parts) == 3
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method, salt, digest = parts
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assert method.startswith("pbkdf2:sha256:")
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assert salt
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# digest is hex of pbkdf2_hmac sha256 → 64 hex chars
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assert len(digest) == 64
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assert all(c in "0123456789abcdef" for c in digest)
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def test_verify_werkzeug_scrypt_hash():
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"""Known werkzeug scrypt hash generated by 26.11 / 26.12 boxes.
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Captured live off a .196 test VM after its auth bootstrap:
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username=daniel, password=test-admin-pw1
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Hash format: scrypt:32768:8:1$<salt>$<hex>
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If this regresses, every existing box that upgraded via 26.11 and
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set a password gets locked out on the next upgrade.
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"""
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known = (
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"scrypt:32768:8:1$yWZUqJodowt9ieI1$"
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"2d1059b3564da7492b4aa3c2be7fff6fef06085e5e1bfd52e897948c58246b7a"
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"9603400355b7264f61c4436eba7bf8c947adec3d7a76be03b50efb4227e15a80"
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)
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assert passwd.verify_password("test-admin-pw1", known)
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assert not passwd.verify_password("wrong-password", known)
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def test_verify_rejects_malformed_hashes():
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# Empty / missing delimiters / unknown method / bad int — all False.
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assert not passwd.verify_password("x", "")
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assert not passwd.verify_password("x", "nothingspecial")
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assert not passwd.verify_password("x", "pbkdf2:sha256:600000") # no $salt$digest
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assert not passwd.verify_password("x", "pbkdf2$salt$digest") # missing hash + iter
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assert not passwd.verify_password("x", "bcrypt:12$salt$digest") # unsupported algo
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assert not passwd.verify_password("x", "pbkdf2:sha256:abc$salt$digest") # bad iter int
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def test_verify_rejects_nonstring_inputs():
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# Defensive: users.json can be corrupted or have nulls.
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assert not passwd.verify_password(None, "pbkdf2:sha256:1000$salt$digest") # type: ignore[arg-type]
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assert not passwd.verify_password("x", None) # type: ignore[arg-type]
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assert not passwd.verify_password("x", 12345) # type: ignore[arg-type]
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